Very strange for your company, as the RTO maneuver is clearly explained in the QRH under the maneuvers.
In general: cautions (amber) & warnings (red) warrant a stop before 80kts. Between 80Kts and V1 only warnings dictate a stop. But for more specific details, refer to QRH.
Bird strike is not a high speed RTO unless there is a clear "warning" associated with it (ie resulting in fire or fire warning, engine failure or airplance considered unsafe to fly).